Volume 12 in the RUSCH series continues work already begun on the School of Aristotle. It focuses on two Peripatetic philosophers who lived in the third century BCE, when Stoicism and Epicureanism flourished. Lyco of Troas was the third head of the Peripatos after Aristotle. Hieronymus of Rhodes was a member of the school and an antagonist of Lyco. Excellence in teaching was Lyco’s distinguishing attribute, but he also attracted benefactors and had the reputation of being a bon vivant. Hieronymus is best known for his work on ethics, but he also wrote on literature, history, and rhetoric. Our understanding of the work being done in the Peripatos during the third century BCE will be greatly enhanced by Peter Stork’s new edition of Lyco and Stephen White’s edition of Hieronymus.